Improvement in key-fasteners



E. T. JENKINS.

KEY-FASTWEB. No.17'7,846.` Patented May 23,1875.

NAPEERS, PHOTO-LITHOGRAPHIE?, WASHINGTON. D4 C :UNITED STATES PATENTEEICE.

EDWARD T. JENKINS, OF BROOKLYN, NEW YORK.

IMPROVEMENT IN KEY-FASTENERS.

Specification forming part of Letters PatentrNo.. 177,846, dated May 23,1876; application led April 15, 1876.

To all whom it may concern:

Be it known that I, EDWARD T. JENKINS,

of Brooklyn, in the county of Kings and State of New York, have inventedau Improved KeyGuard; and I do hereby declare that the following is afull, clear, and exact description of the same, reference being had tothe accom- `constructed of a horn or arm, having at one end two verticalarms, one of which is provided with a notch, in combination with asetscrew, passing through one ot' the vertical arms, the constructionand operation of which wil'l be more full y hereinafter described.

Figure l in the drawing is a perspective view ot' a lock with a kcyinserted therein, and m improved key guard attached thereto. Fig. 2 is aperspective View of the key-guard detached from the key; Fig. 3 is aView of a key with the key-guard attached thereto. Fig. 4 is a diagramillustrating the application ot' the device to holding a key fromturning in a hook.

A is the clamp. It is constructed of metal,

with two vertical clamping-jaws,jj, as shown in the drawing, and with anangular notch, n, for the better engagement of the stem of the key k.In'the clamping-jaw jf, opposite the notched jaw j, is fitted a screw,s, which is screwed down upon the key when the keyguard is in use. Saidscrew is preferably made of steel, with a hardened conical point, whichbites into the metal of the key-stem. From the clamp A extends the hornh, which is preferably made of the same piece ot' metal as the clamp,and which, wheuin use, is inserted in the key-hole o of the lock. 4

In use, the key is first turned in the lock, to shoot the bolt of thesame into the keeper. The horn h of the key-guard is then inserted inthe key-hole below the stem ot' the key, and

v clamped to the key-stem by bringing the notch n in the clampj intoengagement with said stem, and screwing the screw s down. upon the same.

I claim- The clamp A, constructed of the horn h, having at one end theverticaljawsjj, one of which is provided with a notch, a, in combinationWith the set-screw s, passing through one of the vertical jaws, as andfor the object specitied.

ED WD. T. JENKINS.

Witnesses MICHAEL RYAN, FEED. HAYNES.

